Submission #16923

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
16923	2015-10-27T06:12:01 Z	taehoon1018	팩토리얼 세제곱들의 합 (YDX14_fact)	C	Compilation error	0 ms	0 KB

fact

#include <stdio.h>
#include <math.h>
#include <stdlib.h>

int factorial(int n)
{
	if (n < 1)
		return 1;
	else
		return n*factorial(n - 1);
}

int main(void)
{
	int n, k, sum = 0, i, res;

	scanf_s("%d %d", &n, &k);

	for (i = 0; i <= n; i++)
	{
		sum += pow((double)factorial(i), k);
	}

	while (1)
	{
		res = sum % 10;
		if (res != 0)
			break;
	}

	printf("%d", res);

  	return 0;
}

Compilation message

fact.c: In function ‘main’:
fact.c:17:2: warning: implicit declaration of function ‘scanf_s’ [-Wimplicit-function-declaration]
  scanf_s("%d %d", &n, &k);
  ^
/tmp/ccNOliqf.o: In function `main':
fact.c:(.text.startup+0x1a): undefined reference to `scanf_s'
fact.c:(.text.startup+0x4c): undefined reference to `pow'
collect2: error: ld returned 1 exit status